Fleece-laying device

Abstract

A fleece-laying device for laying a fleece from a card web having a laying carriage movable above and transversely to an output conveyor belt, an upper carriage also movable transversely to the output conveyor belt, and a first card web conveyor belt and a second card web conveyor belt for guiding the card web via the upper carriage and the laying carriage into a laying nip formed in the laying carriage. The fleece-laying device includes a card web guiding area between the upper carriage and the laying carriage with two sections of the first and second card web conveyor belts holding the card web between them and being guided over at least one support roll mounted in a support carriage which is also movable transversely to the output conveyor belt.

1. A fleece-laying device for laying a fleece from a card web, the fleece-laying device comprising
 a laying carriage movable above and transversely to an output conveyor belt, 
 an upper carriage also movable transversely to the output conveyor belt, and 
 a first card web conveyor belt and a second card web conveyor belt for guiding the card web via the upper carriage and the laying carriage into a laying nip formed in the laying carriage, 
 wherein, in a card web guiding area between the upper carriage and the laying carriage, two sections of the first and second card web conveyor belts hold the card web between them and are guided over at least one support roll mounted in a support carriage which is also movable transversely to the output conveyor belt. 
 
     
     
       2. The fleece-laying device of  claim 1  wherein the support carriage is movable on rollers along rails or tubes. 
     
     
       3. The fleece-laying device of  claim 1  wherein a drive of the support carriage is connected to a drive of the laying carriage or to a drive of the upper carriage. 
     
     
       4. The fleece-laying device of  claim 3  wherein a chain or a toothed belt is attached to the support carriage, which chain or toothed belt passes over a drive gear of the support carriage connected to a motor and around a deflection pulley. 
     
     
       5. The fleece-laying device of  claim 4  wherein the drive gear of the support carriage and a drive gear of the laying carriage are driven by a single shaft but comprise a different circumference. 
     
     
       6. The fleece-laying device of  claim 4  wherein the drive gear of the support carriage and a drive gear of the upper carriage are driven by a single shaft but comprise a different circumference. 
     
     
       7. The fleece-laying device of  claim 1  wherein the support carriage comprises an independent drive. 
     
     
       8. The fleece-laying device of  claim 1  comprising at least two support rolls. 
     
     
       9. The fleece-laying device of  claim 8  wherein the two sections of the first and second card web conveyor belts arranged between the upper carriage and the laying carriage are guided through a gap between two support rolls. 
     
     
       10. The fleece-laying device of  claim 8  wherein the two sections of the first and second card web conveyor belts arranged between the upper carriage and the laying carriage have an exit height at a point where they leave the support rolls which differs from an entrance height into the support rolls. 
     
     
       11. The fleece-laying device of  claim 9  wherein the two support rolls are arranged next to each other and a certain distance apart, and the two sections of the first and second card web conveyor belts arranged between the upper carriage and the laying carriage pass through an intermediate space between the support rolls. 
     
     
       12. The fleece-laying device of  claim 1  wherein it is designed as an in-phase fleece layer where the upper carriage and the laying carriage at any time move in common directions. 
     
     
       13. The fleece-laying device of  claim 12  wherein the support carriage is arranged between the upper carriage and the laying carriage and on a same level as the upper carriage and the laying carriage. 
     
     
       14. The fleece-laying device of  claim 13  wherein a drive of the support carriage is designed in such a way that the support carriage moves in synchrony with the upper carriage and the laying carriage and at a speed which is between a speed of the laying carriage and a speed of the upper carriage.